Store-window



UNITED STATEs PATE T 'UFricE,

YMAN CLAY]? BAILEY, or CALAIS, name.

STORE-WINDOW.

SPECIFICATION forming part of Letters Patent No. 293,216, dated February 12, 1884,

' I I Application filed July 10, .1853. (Nomodcl) To (IIZZ whom it may concern/.-

Be it known that I, LYMAN C. BAILEY, of]

Calais, county of \Vashington, State of Maine, have invented an Improvement in Store-VVindows, of which the following description, in-

connection with the accompanying drawings, is a specification, like letters on the drawings representinglike parts.

My invention relates to an improvement in store-windows, such as commonly used for the exhibition of goods to be seen from the street outside the store, and has for its obj ect to prevent the collection or condensation of moisture and formation of frost upon the window in cold weather. Such condensation of moisture is due to the difference in tempera ture at the outside and inside of the window, the interior of the building being artificially heated, so that the temperature is much higher within it than at the outside; and the heated interior air coming in contact with the surface of the glass at a much lower tempera ture gives up its moisture, causing a thick deposit of frost in cold weather, which effect' ually obscures vision through the window, and, moreover, cuts off a large portion of the light. j

My present invention consists in means, hereinafter described, and specifically pointed out in the claims, for keeping both sides of the glass at the same or nearly the same temperature,.which I accomplish by providing small. inlet-openings at the lower end of the window or sash, to permit the exterior air to enter, and by combining with the window provided with such openings a deflector, by which the current of air thus entering is directed along the interior surface of the glass, preventing the contact therewith of the warmer atmosphere within the buildin I also provide a secondary pane of glass or window within the outer window, inclosing a chamber or-space of conslderable size, and at the upper end of the said secondary window I provide a series of openings or passages, to permit the air to escape from the chamber formed between the two windows, and thus maintain a sufficient circulation in the said space or chamber. 7

Figurel is a front elevation of a window.

.the door or rear edge of the window a,

embodying this invention, and Fig. a tical section thereof on linex The window consists of one or more panes of glass, a, inclosedin frame-work Z) in the usual manner, and is provided at its lower end with one or more inlet-openings, c, preferably extending for the greater part of its width, and immediately within the said openings is placed a deflector, d, consisting of a plate or wing turned upward parallel with the glass at a short distance from its innersurface.

In the construction of store buildings, the door is frequently recessed or set back a short distanc'etwo or three feet perhaps-from the plane of the front of the building or mai'nwin dow a, and the space between the said main window and door is inclosed by another window. a, usually set diagonally between the front window, a, and the door, and in this construction the said window a will be provided with a similar inlet-opening, 0, having a deflector behind it.

At some distance at the rear of the main window a, preferably about at'the plane of is placed a secondary pane of glass or window, 6,

(see Fig. 2,) thus inclosing a chamber or airi space, A, between the'main or outer,windows, a a, and the secondary or inner window, 6; and at its upper portion the said secondary window is provided with one or more passages, 03, which permit the air to pass between the said chamber A and the interior of the store.

In cold weather, when the interior of the store is artificially heated to a much higher temperature than the air outside, the cold air will enter the chamber A from the outside, passing through the passage 0, and being deflected upward along the inner side of the window a, as shown by the arrows, Fig. 2, and will thus maintain an atmosphere of substantially the same temperature at the inner and outer surfaces of the said window a, which effectually prevents the condensation of moisture or formation of frost upon the saidwindow. The openings at z permit proper trans fer or circulation of air between the chamber A and the interior of the store to effect the from frost or condensation of moisture at all desired "result; and by the herein-described (1, arranged before said openings, to direct the constr uction windows are kept perfectly free incoming air upwardly along the interior sur- I 5 face of the pane and the interior window or times. \Vhile this is especially desirable in partition, (2, having the openingsi, at the top Windows of stores used for the exhibition of thereof, substantially as shown, and for the merchandise within the store, the invention purpose described. is of course applicable to all Windows where In testimony whereof. I have signed my 20 it'is'desired to prevent the collection of moistname to this specification in the presence of ure'or frost. two subscribing witnesses.

I claim- LYMAN OLAPI BAILEY.

A store or show window consisting of the I fixed exterior Window, a, having at its bottom I the air-openings c and the air-deflecting plate I Witnesses:

' OTIS W. BAILEY, A. F. Mo'RRnLL. 

